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Create a Turnitin assignment.
Steps on this process can be found in this KB article: How do I create a new Turnitin assignment?Click on the Enter Student Preview mode icon
There should be a confirmation banner at the top of the screen indicating that you’ve successfully entered student preview mode.In Student Preview mode, navigate to the appropriate Turnitin assignment.
Click on the assignment link to open it. Then select the Upload Submission button. Follow the prompts to submit your file.
Click the “X” button in the purple box located in upper left hand side of your Blackboard course screen. This exits the course and allows you to reopen the course on the Course Home Page.
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